How does the poem sonnet 43 use of reptition contribute to the tone of the poem?

The dominant figure of speech in the poem is anaphora—the use of I love thee in eight lines and I shall but love thee in the final line. This repetition builds rhythm while reinforcing the theme. Browning also uses alliteration, as the following examples illustrate:

thee, the (Lines 1, 2, 5, 9, 12).

Explanation:

thee,they (Line 8)

soul, sight (Line 3)

love, level (Line 5)

quiet, candle-light (Line 6)  

freely, strive, Right (Line 7)

purely, Praise (Line 8)

passion, put (Line 9)

my, my (Line 10)

love, love (Line 11)

With, with (Line 12)

lost, love (Line 12)

but, better (Line 14)

this is incorrect

explanation:

this is false